Upgrade nightmare

Attempted to do an upgrade online on the 12 Feb an advertised deal and kept giving me an error. Phoned through to upgrades dept and agent also and agent also and no success and was told this needs to be escalated . With hardly any communication from Vodacom I get a mail back almost a month later stating the below

"Unfortunately, the deal was advertised in error hence the deal was removed.

In better words the deal does not exist to be re-opened.

Please refer to the website terms and conditions and disclaimer. "

To add to this I get a call from a Elite Mobile acting on behalf of Vodacom , the agent who claims to be the Manager assures me he can give me the deal I initially app**** for , to which I told him go ahead only to find that he tied me into a 3O month contract and not 24 month which he repeatedly stated on the recorded call. Absolutely NO JOY from Vodacom to resolve the matter, no wonder they cannot get anything more than a 2 star rating from their subscriber base